Building permits, zoning and land rules in Washington County, Florida

At a glance

Building permit

Required for covered construction before work begins¹

Zoning and land use

County rules cover unincorporated areas, Caryville, Ebro, Vernon and Wausau²

Septic

Florida DEP permit and site evaluation required⁴⁵

RV living

Permanent residential use is prohibited; temporary camping is unconfirmed³

Tiny home

Occupancy and local minimum size are unconfirmed; ask Planning⁶⁷

Owner-builder

Available conditionally with direct onsite supervision⁸

Private well

A permit is required from the water management district or its delegate⁹

Who to call

Contact details are copied from each office’s official page and were checked against it on October 10, 2026.

Do you need a building permit in Washington County, Florida?

Yes. Washington County requires a permit for covered construction and installations, and work must not start before the permit is issued.¹ Separate permits are identified for electrical work, plumbing, signs, wells, pools, furnaces, boilers, heaters, tanks and air conditioners.¹ The county's application uses the Florida Building Code in effect for its permit review.¹⁰

Inspections require the proper building, plumbing, electrical, mechanical and roofing permits, plus the permit number and inspection type when the inspection is requested.¹¹ An improvement costing $2,500 or more also requires a Notice of Commencement to be provided and posted before the first inspection.¹¹

Who issues building permits in Washington County, Florida?

The Washington County Building Department issues building permits, reviews plans, performs electrical and building inspections, maintains contractor licensing and provides a permit-search portal.¹² Before applying, obtain an approved land-use application through Planning, a valid address through E-911 Addressing and a driveway permit when required.¹²

The Building Department is at 1331 South Blvd., Chipley, FL 32428, and its phone number is +1 (850) 638-6195.¹² Contractors already registered with the department may email permits to permits@washingtonfl.com; other applicants should confirm the submission method with the office.¹² Washington County's published application collects project, owner, contractor, occupancy, building, valuation and trade-permit information.¹³

Does Washington County, Florida have zoning?

The Washington County Planning Department administers the Land Development Code and Comprehensive Plan in unincorporated Washington County and in Caryville, Ebro, Vernon and Wausau; the cited rule does not establish county administration in every municipality or address Chipley.²

For development reviewed in unincorporated Washington County, setbacks come from the parcel's Future Land Use Map category, and the site plan must show distances from property lines, the center line of an abutting right-of-way and adjacent buildings or structures.¹⁴ Ask Planning for the applicable distances and for parcel-specific answers on minimum dwelling size, minimum lot size and tiny-home occupancy, which we could not confirm.⁷ Off-site-built dwellings treated as real property must be allowed where single-family detached homes are allowed, subject to generally applicable permitting, installation, health, utility and development standards.¹⁵

How do septic permits work in Washington County, Florida?

Florida DEP handles onsite sewage treatment and disposal system permitting in Washington County, taking over that county function on January 2, 2025.⁴ A permit is required to construct, repair, modify or abandon a septic system, and the application includes DEP4015, a site plan, a building floor plan and submission through DEP's online portal.⁵ The required site evaluation examines soil, topography and other installation conditions.⁵

Only 8.2% of county soils are rated without severe limits for a conventional septic drain field, so make the site evaluation part of the purchase contingency instead of assuming a conventional layout will work.¹⁶ For permit-status questions, Northwest Florida field services lists OSP_NWSA@floridadep.gov and 850-595-0656, and its Washington County group is expressly identified.¹⁷

Can you live in an RV or tiny home in Washington County, Florida?

Permanent residential use of an RV is prohibited in Washington County, and only structures approved by Planning will receive an address.³ The county rule does not answer short-term or temporary camping, so ask Planning about the specific parcel and proposed duration before moving an RV onsite.³ Planning requests the parcel identification number, property address, owner of record and a brief proposal description when answering development questions.⁷

Washington County's materials do not give a confirmed rule for tiny-home occupancy or a local minimum dwelling size. Ask Planning whether the proposed unit qualifies as a dwelling in the parcel's Future Land Use Map category and what setbacks apply.¹⁴ A manufactured home treated as real property is allowed where single-family detached dwellings are allowed, subject to generally applicable setbacks, installation, permitting, health and utility requirements.¹⁵

Building a home in Washington County, Florida: what are the steps?

1. Send Planning the parcel identification number, address, owner of record and proposed development description; obtain land-use approval, confirm the Future Land Use Map setbacks and ask for parcel-specific flood information.⁷¹⁴
2. Obtain a valid E-911 address.¹² For a new home on a county-maintained road, apply to Public Works for a driveway permit; use FDOT instead for a state-maintained highway.¹⁸
3. Apply to Florida DEP for the septic permit and site evaluation, using the required application, plans and online portal.⁵
4. Submit the building application with project, ownership, contractor, occupancy, valuation and applicable trade information; do not start work before issuance.¹³
5. Schedule required inspections with the permit number and inspection type, and post a Notice of Commencement before the first inspection when the improvement costs $2,500 or more.¹¹

What should you check before buying land in Washington County?

Start with land use, flood exposure, legal access, septic feasibility and water. Planning advises buyers to contact the office before purchase for parcel-specific flood information.⁷ If land will be split, a subdivision requires an approved plat; a division into parcels of at least 4.5 acres avoids platting only when every parcel meets the stated roadway conditions and the division follows development-plan review.¹⁹ Only 8.2% of county soils are rated without severe limits for a conventional septic drain field, so make the site evaluation a purchase contingency.¹⁶

A private water well requires a permit from the appropriate water management district or its delegated authority before construction, repair or abandonment.⁹ If public sewer later becomes available, a properly functioning septic system generally must connect within 365 days after written notice, subject to the rule's conditions and possible waiver.²⁰ The effective property-tax rate is about 0.5%, and the median annual property-tax bill is $787.²¹²²

Watch-outs

• Do not begin covered construction before Washington County issues the permit.¹
• Confirm flood information with Planning before purchase; development in a flood zone may require additional review.⁷
• Permanent residential RV use is prohibited; temporary camping, tiny-home occupancy and a local minimum dwelling size remain unconfirmed, so ask Planning for a parcel-specific answer.³⁷
• A new residential driveway on a county-maintained road needs a Public Works permit before electrical power is authorized; state-highway access goes through FDOT.¹⁸
• The owner-builder route still requires direct onsite supervision and compliance with applicable codes and zoning.⁸

Sources

1. Application for Building Permit, quoted and re-checked
2. County Planning Department, quoted and re-checked
3. Application for Land Use Certificate / General Development Review, quoted and re-checked
4. Onsite Sewage and Disposal - Florida Department of Health in Washington County, quoted and re-checked
5. Onsite Sewage FAQ - Permitting, quoted and re-checked
6. County Planning Department, quoted and re-checked
7. Washington County Planning Department (washingtonfl.gov)
8. Owner / Builder Permit Affidavit, quoted and re-checked
9. Water Well Contractor Licensing and Permitting (Florida statewide rule), quoted and re-checked
10. Application for Building Permit, quoted and re-checked
11. Building Inspection Procedures, quoted and re-checked
12. Washington County Building Department (washingtonfl.gov)
13. Application for Building Permit, quoted and re-checked
14. Development Internal Checklist, quoted and re-checked
15. Florida Statutes § 553.385, Zoning of off-site constructed residential dwellings; parity (Florida statewide rule), quoted and re-checked
16. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
17. Florida DEP Onsite Sewage Program Field Services — Northwest Florida (floridadep.gov)
18. Residential Planning Review and Approval Instructions, quoted and re-checked
19. Subdivision Review Procedure, quoted and re-checked
20. flsenate.gov (Florida statewide rule), quoted and re-checked
21. Effective property tax rate: Bolthole Index county data
22. Median property tax bill: Bolthole Index county data

Written October 10, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.